Board Thread:Pokémon Help/@comment-30757623-20180103071447/@comment-31398341-20180107120010

IMO Hyper Offense teams does not work that well due to the fact that Choice items are unreleased, making these kind of teams hard to deal with setup sweepers.

Generally, you team struggles against two of the meta Pokemon, Marshadow and Mega Salamence. In order to do well against the current meta, from my point of view, you should use bulky offense or balanced as opposed to hyper offense.

Using Zapdos is a great idea for this team due to the fact that it counters Mega Salamence and can mildly check Marshadow. As you said, replace Jolteon.

Leech Seed > Toxic on Ferrothorn is beneficial for Mega Mawile to possibly regenerate some health in order to wallbreak more effectively. It also helps with Ferrothorn's longevity itself due to its lack of recovery, making Leech Seed a very good move.

For Dugtrio to be useful, hazard remover is a must on a team. Otherwise Stealth Rock renders it useless. One of the best options is Mandibuzz (Defog) because of its ability to counter Marshadow.

I am not that good much at adjusting Hyper Offense teams, so sorry if I can't help much. Hope this helps though.